How to configure raid 0+1

[hellsbells]

Does anyone know how to configure a raid array at level 0+1?

The storage I am using is ssa.

I have only ever configured raid5 arrays using smit, but we need to have both striping and mirroring for an Oracle installation.

Any help would be much appreciated.

 

[ogniemi]

very similiar procedure you performed during creation of RAID5 - you choose RAID10 then.

smitty ssaraid

http://tinyurl.com/547bb

RAID 10 - RAID-0+1
RAID-0+1, also known in the industry as RAID 10, implements block interleave data striping and mirroring. RAID 10 is not formally recognized by the RAID Advisory Board (RAB), but, it is an industry standard term. In RAID 10, data is striped across multiple disk drives, and then those drives are mirrored to another set of drives.

The performance of RAID 10 is approximately the same as RAID 0 for sequential I/Os. RAID 10 provides an enhanced feature for disk mirroring that stripes data and copies the data across all the drives of the array. The first stripe is the data stripe; the second stripe is the mirror (copy) of the first data stripe, but it is shifted over one drive. Because the data is mirrored, the capacity of the logical drive is 50 percent of the physical capacity of the hard disk drives in the array.

 

[hellsbells]

Thanks ever so much ogniemi !